CN109204454A - Two-wheeled omnibearing ambulation system - Google Patents

Two-wheeled omnibearing ambulation system Download PDF

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Publication number
CN109204454A
CN109204454A CN201811335548.6A CN201811335548A CN109204454A CN 109204454 A CN109204454 A CN 109204454A CN 201811335548 A CN201811335548 A CN 201811335548A CN 109204454 A CN109204454 A CN 109204454A
Authority
CN
China
Prior art keywords
speed reducer
driving wheel
wheeled
wheel
annular groove
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811335548.6A
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Chinese (zh)
Inventor
袁全桥
韦宝琛
谭强
孔惟礼
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Xinbo Technology Co ltd
Original Assignee
Coreball (shanghai) Intelligent Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Coreball (shanghai) Intelligent Technology Co Ltd filed Critical Coreball (shanghai) Intelligent Technology Co Ltd
Priority to CN201811335548.6A priority Critical patent/CN109204454A/en
Publication of CN109204454A publication Critical patent/CN109204454A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D11/00Steering non-deflectable wheels; Steering endless tracks or the like
    • B62D11/02Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides
    • B62D11/04Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of separate power sources
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D63/00Motor vehicles or trailers not otherwise provided for
    • B62D63/02Motor vehicles

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

The invention discloses a kind of Two-wheeled omnibearing ambulation systems comprising wheel carrier, the first driving motor, the first speed reducer, the first driving wheel, the second driving motor, the second speed reducer, the second driving wheel;First speed reducer and the second speed reducer are fixed by bolts on wheel carrier;The input shaft and output shaft of first speed reducer are separately connected the first driving motor and the first driving wheel;The input shaft and output shaft of second speed reducer are separately connected the second driving motor and the second driving wheel;And first driving wheel and the second driving wheel be distributed in the two sides of wheel carrier.The present invention can be realized car body 360 ° freely turn to and provide enough adhesive force to driving wheel in the case where AGV vehicle is by the different operating conditions such as roughness pavement and heavy duty/underloading, prevent the multiple functions such as coiling, measurement wheel group angle.

Description

Two-wheeled omnibearing ambulation system
Technical field
The invention belongs to automated guided vehicle field technical fields, relate in particular to a kind of comprehensive row of Two-wheeled Walking system.
Background technique
With advances in technology, AGV (Automated Guilded Vehicle) vehicle as it is a kind of have safeguard protection and The carrier for transplanting function, because its supermatic characteristic, is widely used in mechanical stereo parking garage field.? AGV vehicle technical field, AGV driving wheel to the adhesion property on ground directly determine AGV Chinese herbaceous peony into power it is whether sufficient, simultaneously Also its motion profile control performance is affected.When ground environment is good, it is only necessary to which face has stabilization to the driving wheel of AGV vehicle over the ground Pressing force.But ground not usually, need the driving wheel of AGV that there is enough adhesive force to guarantee to load the flat of weight Steady transport.On the one hand existing AGV bassinet structure cannot complete the tune of steering angle well when turn to or angle controls It is whole.In addition, on ground enough attachments can not be provided to driving wheel there are when the complicated grounds environment such as raised or sunken obstacle Power.It, can not be in the different operating conditions such as heavy duty and underloading pair in addition, existing AGV bassinet structure is there is also being unable to measure wheel group angle Driving wheel provides enough adhesive force, driving mechanism on the rotating platform when be easy to produce coiling phenomenon, etc. problems.Therefore, A kind of novel Two-wheeled omnibearing ambulation system how is developed, can overcome the problems, such as above-mentioned each, is art technology Personnel need the direction studied.
Summary of the invention
The object of the present invention is to provide a kind of Two-wheeled omnibearing ambulation system, 360 ° for can be realized car body freely turn To, and have under by the different operating condition such as roughness pavement or heavy duty/underloading to driving wheel provide enough adhesive force, prevent around The multiple functions such as line, measurement wheel group angle.
The technical scheme adopted is as follows:
A kind of Two-wheeled omnibearing ambulation system comprising wheel carrier, the first driving motor, the first speed reducer, first drives Driving wheel, the second driving motor, the second speed reducer, the second driving wheel;First speed reducer and the second speed reducer are solid by bolt Due on wheel carrier;The input shaft and output shaft of first speed reducer are separately connected the first driving motor and the first driving wheel;Institute The input shaft and output shaft for stating the second speed reducer are separately connected the second driving motor and the second driving wheel;And first driving wheel The two sides of wheel carrier are distributed in the second driving wheel.
By using this technical solution: being adjusted separately by the driving mechanism of two groups of driving motors and speed reducer and be located at wheel The velocity of rotation of the driving wheel of frame two sides and direction.By the output revolving speed of control driving motor, driving wheel is made to obtain rotational speed difference, Accurately regulate and control the steering angle of AGV vehicle.Wherein, select driving motor as driving executing agency, to improve double drive complete The precision of orientation running gear, and driving motor has the characteristics that output torque is big, the operation is stable.
Preferably, in above-mentioned Two-wheeled omnibearing ambulation system: it further include suspension buffer system, the suspension buffering System is fixed on wheel carrier comprising lower cylinder, upper cylinder, spring, disc spring and thrust bearing;The lower cylinder is equipped with annular groove;Institute It states spring, disc spring and thrust bearing to be located in annular groove, and the thrust bearing is located at annular groove bottom;The disc spring connects It connects on the upside of thrust bearing, on the upside of the spring connection disc spring;The upper cylinder includes top surface and side tube-wall;The side tube-wall protrudes into ring In shape slot and it is located on the upside of disc spring;Annular convex edge is equipped on the outside of the top surface edge, the annular convex edge radius is greater than annular groove Radius, for limiting downward movement of the upper cylinder to lower cylinder;The side tube-wall inner wall is equipped with annular rib, the annular rib position On the upside of spring.
By using this technical solution: upper cylinder is for being fixed on weight bearing bracket, and lower cylinder is for being fixed on rotating platform On.When unsupported weight on the bracket that bears a heavy burden, side tube-wall protrudes into that annular groove portion is not in contact with disc spring and annular rib is pressed on On spring, spring is in bending compressive state at this time, by the weight of spring supporting weight bearing bracket.And it is placed with when on weight bearing bracket When weight, spring is in limited compression state.Side tube-wall is under pressure towards annular groove bottom movement, its bottom edge and dish at this time Spring contact, mainly bears increased weight by disc spring.It is met under the different operating conditions of heavy duty and underloading as a result, as driving Wheel provides the effect of enough adhesive force.In addition, make AGV vehicle in running on rough terrain using this mechanism, upper cylinder and lower cylinder Spacing is generated when jolting, the power of disc spring compression at this time discharges first, then the power release of spring.Pass through disc spring and two layers of spring Buffering avoids ground from jolting being transferred to weight bearing bracket, ensure that AGV vehicle is jolting road conditions when driving, the stability of weight bearing.
Preferably, in above-mentioned Two-wheeled omnibearing ambulation system: the comprehensive row of Two-wheeled as claimed in claim Walking system, it is characterised in that: further include encoder system, the encoder system includes encoder stator and encoder magnet steel; The encoder stator is mutually fixed with upper cylinder;The encoder magnet steel is mutually fixed with lower cylinder.
By using this technical solution: during AGV vehicle does steering movement, lower cylinder is rotated together with wheel carrier, phase Divertical motion is generated for upper cylinder.Relative encoder's stator rotates encoder magnet steel therewith, is achieved in driving wheel around suspension The measurement of buffer system rotational angle.In practice, the length of encoder magnet steel is total to by the distance that detection length and upper and lower cylinder separate With decision.
It is further preferred that in above-mentioned Two-wheeled omnibearing ambulation system: the lower cylinder is equipped with the first via hole;It is described First via hole and annular groove are concentric structure, its aperture less than annular groove radius;The top surface is equipped with the second via hole.
By using this technical solution: the cable being powered for the driving mechanism on rotating platform sequentially passes through first Thus via hole and the second via hole overcome the problem of electric wire is easy to produce coiling phenomenon when AGV vehicle turns to.
It is further preferred that in above-mentioned Two-wheeled omnibearing ambulation system: further including axle sleeve, the axle sleeve is fixed on annular It is separated in slot, by upper cylinder and lower cylinder.
By using this technical solution: setting axle sleeve separates upper cylinder and lower cylinder, for reducing between upper cylinder and lower cylinder Abrasion, play lubricating action.
It may further be preferable that in above-mentioned Two-wheeled omnibearing ambulation system: it further include upper disc spring pad, the upper disc spring Pad is set on the upside of disc spring, separates spring and disc spring and side tube-wall and disc spring.
By using this technical solution: the above disc spring pad is realized disc spring and is protected, and disc spring quilt in loading process is prevented Spring causes to scratch, while the pressure for making cylinder be transferred to disc spring becomes uniform.
It is even furthermore preferable that in above-mentioned Two-wheeled omnibearing ambulation system: it further include lower disc spring pad, the lower dish Spring pad is set on the downside of disc spring, separates disc spring and thrust bearing.
By using this technical solution: following disc spring pad is realized thrust bearing and is protected, and prevents disc spring in stress to releasing Thrust bearing is caused to scratch during putting.
It is even furthermore preferable that in above-mentioned Two-wheeled omnibearing ambulation system: first speed reducer and second subtracts Fast machine uses parallel axle speed reducing machine.
By using this technical solution: parallel axle speed reducing machine has high-efficient, noise compared with other similar products Small, maintenance cost is low, and installation is simple, and installation and debugging are simple.
It is even furthermore preferable that in above-mentioned Two-wheeled omnibearing ambulation system: first driving wheel and second drives Driving wheel is made of polyurethane and aluminium alloy.
By using this technical solution: it is small with noise, and large carrying capacity is light-weight, and wearability is good, ground friction The small advantage of coefficient.
It is even furthermore preferable that in above-mentioned Two-wheeled omnibearing ambulation system: it further include rolling ball bearing, the rolling Dynamic ball bearing is fixed on the axis of lower cylinder, is installed in wheel carrier.
By using this technical solution: when the first driving wheel and the second driving wheel be not in a horizontal plane, wheel carrier with Centered on the axis of rolling ball bearing, adjust the angle of wheel carrier, thus guarantee driving wheel always with ground face contact.
It is even furthermore preferable that in above-mentioned Two-wheeled omnibearing ambulation system: it further include bearing (ball) cover, the axis Socket end lid connects rolling ball bearing.
By using this technical solution: the axial movement of suspension buffer system is limited with bearing (ball) cover, when AGV vehicle needs When bringing to a halt, the inertia force of suspension buffer system is passed to wheel carrier by bearing (ball) cover.
Compared with prior art, the configuration of the present invention is simple, it is easily prepared.360 ° for can be realized car body freely turn to, and With under by the different operating condition such as roughness pavement and heavy duty/underloading to driving wheel provide enough adhesive force, prevent coiling, Measure the multiple functions such as wheel group angle.
Detailed description of the invention
Present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments:
Fig. 1 is the structural schematic diagram of embodiment 1;
Fig. 2 is the schematic top plan view of Fig. 1;
Fig. 3 is the structural schematic diagram that buffer system and bearing, bearing (ball) cover are hung in Fig. 1;
Fig. 4 is the first working state schematic representation that buffer system is hung in Fig. 3;
Fig. 5 is the second working state schematic representation that buffer system is hung in Fig. 3;
Fig. 6 is the structural schematic diagram of lower cylinder in Fig. 4 and Fig. 5;
Fig. 7 is the structural schematic diagram of upper cylinder in Fig. 4 and Fig. 5;
Fig. 8 is the configuration schematic diagram of Fig. 1.
Each appended drawing reference and component names corresponding relationship are as follows:
1, wheel carrier;21, the first driving motor;22, the first speed reducer;23, the first driving wheel;31, the second driving motor; 32, the second speed reducer;33, the second driving wheel;4, buffer system is hung;6, axle sleeve;71, upper disc spring pad;72, lower disc spring pad;8, Rolling ball bearing;9, bearing (ball) cover;41, lower cylinder;42, upper cylinder;43, spring;44, disc spring;45, thrust bearing;51, encoder is fixed Son;52, encoder magnet steel;411, the first via hole;412, annular groove;421, top surface;422, side tube-wall;423, annular convex edge; 424, annular rib;4211, the second via hole.
Specific embodiment
In order to illustrate more clearly of technical solution of the present invention, it is further described below in conjunction with each embodiment.
As shown in figures 1-8 it is embodiment 1:
A kind of Two-wheeled omnibearing ambulation system comprising wheel carrier 1, the first driving motor 21, the first speed reducer 22, the One driving wheel 23, the second driving motor 31, the second speed reducer 32, the second driving wheel 33, suspension buffer system 4, encoder system, Axle sleeve 6, upper disc spring pad 71, lower disc spring pad 72, rolling ball bearing 8 and bearing (ball) cover 9.
Wherein, first speed reducer 22 and the second speed reducer 32 are fixed by bolts on wheel carrier 1;Described first slows down The input shaft and output shaft of machine 22 are separately connected the first driving motor 21 and the first driving wheel 23;Second speed reducer 32 it is defeated Enter axis and output shaft is separately connected the second driving motor 31 and the second driving wheel 33;And first driving wheel 23 and second drives Wheel 33 is distributed in the two sides of wheel carrier 1.
The suspension buffer system 4 is fixed on wheel carrier 1 comprising lower cylinder 41, upper cylinder 42, spring 43 and push away disc spring 44 Power bearing 45;The lower cylinder 41 is equipped with annular groove 412;The spring 43, disc spring 44 and thrust bearing 45 are located at annular In slot 412, and the thrust bearing 45 is located at 412 bottom of annular groove;The disc spring 44 connects 45 upside of thrust bearing, the bullet Spring 43 connects 44 upside of disc spring;The upper cylinder 42 includes top surface 421 and side tube-wall 422;The side tube-wall 422 protrudes into annular groove In 412 and it is located at 44 upside of disc spring;Annular convex edge 423,423 radius of the annular convex edge are equipped on the outside of 421 edge of top surface Greater than 412 radius of annular groove, the downward movement for limiting cylinder 41 under 42 pairs of upper cylinder;422 inner wall of side tube-wall is equipped with ring Shape rib 424, the annular rib 424 are located at 43 upside of spring.
The encoder system includes encoder stator 51 and encoder magnet steel 52;The encoder stator 51 and upper cylinder 42 It is mutually fixed;The encoder magnet steel 52 is fixed with lower 41 phase of cylinder.The lower cylinder 41 is equipped with the first via hole 411;Described first Via hole 411 and annular groove 412 are concentric structure, its aperture less than 412 radius of annular groove;The top surface 421 is equipped with the Two via holes 4211.The axle sleeve 6 is fixed in annular groove 12, separates upper cylinder 2 and lower cylinder 1.The upper disc spring pad 71 is set to 44 upside of disc spring separates spring 43 with disc spring 44 and side tube-wall 422 with disc spring 44.The lower disc spring pad 72 is set to disc spring 44 Downside separates disc spring 44 and thrust bearing 45.First speed reducer 22 and the second speed reducer 32 use parallel axle speed reducing machine. First driving wheel 23 and the second driving wheel 33 are made of polyurethane and aluminium alloy.The rolling ball bearing 8 is fixed on lower cylinder On 41 axis, it is installed in wheel carrier 1.The bearing (ball) cover 9 connects rolling ball bearing 8.
In practice, the course of work is as follows: being located at wheel carrier 1 one by the first driving motor 21 and the adjustment of the first speed reducer 22 The velocity of rotation of first driving wheel 23 of side.Wheel carrier 1 is located at by the second driving motor 31 and the adjustment of the second speed reducer 32 simultaneously The velocity of rotation of second driving wheel 33 of the other side.By manufacturing rotational speed difference between two driving wheels, control accurate AGV is realized Corner of the vehicle within the scope of 360 °.In the process of moving, when unsupported weight on the bracket that bears a heavy burden, side tube-wall 22 protrudes into AGV vehicle 412 part of annular groove is not in contact with disc spring and annular rib 424 is pressed on spring 43.Spring 43 is in bending compression shape at this time State is supported the weight of weight bearing bracket by spring 43.And when being placed with weight on the bracket that bears a heavy burden, spring 43 is in limited compression shape State.Side tube-wall 422 is contacted towards the movement of 412 bottom of annular groove, its bottom edge with disc spring 32 under pressure at this time, mainly passes through dish Spring 32 bears increased weight.It is met under the different operating conditions of heavy duty and underloading as a result, as the first driving wheel 23 and second Driving wheel 33 provides the effect of enough adhesive force.In addition, when the AGV vehicle using this mechanism is in running on rough terrain, on Cylinder 42 and lower cylinder 41 generate spacing when jolting, and the power that disc spring 32 is compressed at this time discharges first, and the power that then spring 43 compresses is released It puts.By the double buffering of disc spring 44 and spring 43, the vibration that ground is jolted is eliminated, it is prevented to be transferred to weight bearing bracket, from And it ensure that the stability of AGV vehicle weight bearing.And when AGV vehicle does steering movement, encoder magnet steel 52 is around encoder stator 51 Rotation, for measuring the angle of rotating platform rotation.When the first driving wheel and the second driving wheel are not wheel carriers in a horizontal plane The angle of wheel carrier can be adjusted centered on the axis of rolling ball bearing 8, guarantee driving wheel always with ground face contact.
The above, only specific embodiments of the present invention, but scope of protection of the present invention is not limited thereto, it is any ripe The technical staff of art technology is known in technical scope disclosed by the invention, any changes or substitutions that can be easily thought of, should all contain Lid is within protection scope of the present invention.Protection scope of the present invention is subject to the scope of protection of the claims.

Claims (6)

1. a kind of Two-wheeled omnibearing ambulation system, it is characterised in that: including wheel carrier (1), the first driving motor (21), first Speed reducer (22), the first driving wheel (23), the second driving motor (31), the second speed reducer (32), the second driving wheel (33);It is described First speed reducer (22) and the second speed reducer (32) are fixed by bolts on wheel carrier (1);First speed reducer (22) it is defeated Enter axis and output shaft is separately connected the first driving motor (21) and the first driving wheel (23);The input of second speed reducer (32) Axis and output shaft are separately connected the second driving motor (31) and the second driving wheel (33);And first driving wheel (23) and second Driving wheel (33) is distributed in the two sides of wheel carrier (1).
2. Two-wheeled omnibearing ambulation system as described in claim 1, it is characterised in that: it further include suspension buffer system (4), The suspension buffer system (4) is fixed on wheel carrier (1) comprising lower cylinder (41), upper cylinder (42), spring (43), disc spring (44) With thrust bearing (45);The lower cylinder (41) is equipped with annular groove (412);The spring (43), disc spring (44) and thrust bearing (45) it is located in annular groove (412), and the thrust bearing (45) is located at annular groove (412) bottom;The disc spring (44) It connects on the upside of thrust bearing (45), on the upside of spring (43) connection disc spring (44);The upper cylinder (42) include top surface (421) and Side tube-wall (422);The side tube-wall (422) is protruded into annular groove (412) and is located on the upside of disc spring (44);The top surface (421) Annular convex edge (423) are equipped on the outside of edge, the annular convex edge (423) radius is greater than annular groove (412) radius, for limiting Downward movement of the cylinder (42) to lower cylinder (41);Side tube-wall (422) inner wall is equipped with annular rib (424), the annular gear Side (424) is located on the upside of spring (43).
3. Two-wheeled omnibearing ambulation system as claimed in claim 2, it is characterised in that: the lower cylinder (41) is equipped with first Via hole (411);First via hole (411) and annular groove (412) are concentric structure, its aperture less than annular groove (412) radius;The top surface (21) is equipped with the second via hole (211).
4. Two-wheeled omnibearing ambulation system as described in claim 1, it is characterised in that: further include axle sleeve (6), the axle sleeve (6) it is fixed in annular groove (12), separates upper cylinder (2) and lower cylinder (1).
5. Two-wheeled omnibearing ambulation system as described in claim 1, it is characterised in that: first speed reducer (22) and Two speed reducers (32) use parallel axle speed reducing machine.
6. Two-wheeled omnibearing ambulation system as described in claim 1, it is characterised in that: first driving wheel (23) and Two driving wheels (33) are made of polyurethane and aluminium alloy.
CN201811335548.6A 2018-11-09 2018-11-09 Two-wheeled omnibearing ambulation system Pending CN109204454A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811335548.6A CN109204454A (en) 2018-11-09 2018-11-09 Two-wheeled omnibearing ambulation system

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Application Number Priority Date Filing Date Title
CN201811335548.6A CN109204454A (en) 2018-11-09 2018-11-09 Two-wheeled omnibearing ambulation system

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109969713A (en) * 2019-04-02 2019-07-05 燕山大学 A kind of heavy duty Omni-mobile AGV carrying platform
CN111547158A (en) * 2020-04-30 2020-08-18 杭州极木科技有限公司 Ultra-thin type AGV differential drive arrangement

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100187026A1 (en) * 2009-01-28 2010-07-29 Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg Electrical axle assembly
CN103407517A (en) * 2013-08-16 2013-11-27 成都四威高科技产业园有限公司 Automatic guided vehicle (AGV) chassis travelling mechanism
CN106314129A (en) * 2016-08-26 2017-01-11 北京超同步伺服股份有限公司 AGV (Automatic Guided Vehicle) trolley capable of walking in any angle direction

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100187026A1 (en) * 2009-01-28 2010-07-29 Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg Electrical axle assembly
CN103407517A (en) * 2013-08-16 2013-11-27 成都四威高科技产业园有限公司 Automatic guided vehicle (AGV) chassis travelling mechanism
CN106314129A (en) * 2016-08-26 2017-01-11 北京超同步伺服股份有限公司 AGV (Automatic Guided Vehicle) trolley capable of walking in any angle direction

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109969713A (en) * 2019-04-02 2019-07-05 燕山大学 A kind of heavy duty Omni-mobile AGV carrying platform
CN111547158A (en) * 2020-04-30 2020-08-18 杭州极木科技有限公司 Ultra-thin type AGV differential drive arrangement
CN111547158B (en) * 2020-04-30 2021-05-07 杭州极木科技有限公司 Ultra-thin type AGV differential drive arrangement

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Application publication date: 20190115